From Cppreference
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template< class ForwardIterator, class Size, class T >
void uninitialized_fill_n( ForwardIterator first, Size count
const T& value )
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Copies the given value value to the first count elements in an uninitialized memory area beginning at first. The elements in the uninitialized area are constructed using copy constructor.
[edit] Parameters
| first
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| the beginning of the range of the elements to initialize
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| count
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| number of elements to construct
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| value
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| the value to construct the elements with
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[edit] Return value
iterator to the element past the last element copied.
[edit] Complexity
linear in count
[edit] Equivalent function
template< class ForwardIterator, class Size, class T >
void uninitialized_fill_n(ForwardIterator first, Size count
const T& value)
{
typedef typename std::iterator_traits<ForwardIterator>::value_type Value;
for (; count > 0; ++first, --count) {
::new (static_cast<void*>(&*first)) Value(value);
}
return first;
} |
[edit] Example
[edit] See also
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| copies an object to an uninitialized area of memory
(function template)
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